JP4111905B2 - 掘削推進装置 - Google Patents
掘削推進装置 Download PDFInfo
- Publication number
- JP4111905B2 JP4111905B2 JP2003391823A JP2003391823A JP4111905B2 JP 4111905 B2 JP4111905 B2 JP 4111905B2 JP 2003391823 A JP2003391823 A JP 2003391823A JP 2003391823 A JP2003391823 A JP 2003391823A JP 4111905 B2 JP4111905 B2 JP 4111905B2
- Authority
- JP
- Japan
- Prior art keywords
- cutter head
- tip
- excavation
- outer cylinder
- buried pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title description 3
- 238000009412 basement excavation Methods 0.000 claims description 58
- 238000010276 construction Methods 0.000 claims description 18
- 230000008602 contraction Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000001141 propulsive effect Effects 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 238000009933 burial Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
Claims (4)
- 地中に埋設管(1)を敷設するための掘削推進装置であって、カッタ駆動用モータ(13)が内装されると共に、外径が上記埋設管(1)の外径よりも小さい先導管本体(3)と、上記先導管本体(3)の先端に、回転軸心(O2)が先導管本体(3)の軸心(O)と略一致するように付設されるカッタヘッド(4)と、外径が上記埋設管(1)の外径と略同一に設定されて、この埋設管(1)の先端に接続される外筒(2)とを備え、上記カッタヘッド(4)を上記外筒(2)の先端から突出させた状態で、かつ上記外筒(2)の前側に内径側膨出部(5a)を設け、上記内径側膨出部(5a)の肉厚を、曲線施工時においてイン側となる部分をアウト側となる部分よりも小さく設定することにより、先導管本体(3)を上記外筒(2)に対して偏心させた状態で収納したことを特徴とする掘削推進装置。
- 上記カッタヘッド(4)の外径の拡縮を可能として、拡大時には埋設管(1)の敷設可能径に拡大すると共に、縮小時には少なくとも上記先導管本体(3)と略同一となるように縮小することを特徴とする請求項1の掘削推進装置。
- 上記先導管本体(3)は、前胴(10)と後胴(11)を有し、後胴(11)に対して前胴(10)が揺動可能であり、上記外筒(2)は、前ケーシング(5)と後ケーシング(7)を有し、前ケーシング(5)と後ケーシング(7)との間に弾性部材からなる中間ケーシング(6)が介在されてなることを特徴とする請求項1又は請求項2の掘削推進装置。
- 上記外筒(2)の先端縁部の外周面を先細テーパ部(42)としたことを特徴とする請求項1〜請求項3のいずれかの掘削推進装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003391823A JP4111905B2 (ja) | 2003-11-21 | 2003-11-21 | 掘削推進装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003391823A JP4111905B2 (ja) | 2003-11-21 | 2003-11-21 | 掘削推進装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005155056A JP2005155056A (ja) | 2005-06-16 |
JP4111905B2 true JP4111905B2 (ja) | 2008-07-02 |
Family
ID=34718719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003391823A Expired - Fee Related JP4111905B2 (ja) | 2003-11-21 | 2003-11-21 | 掘削推進装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4111905B2 (ja) |
-
2003
- 2003-11-21 JP JP2003391823A patent/JP4111905B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2005155056A (ja) | 2005-06-16 |
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